Italy Coach Antonio Conte has selected Eder as key for his tactics against Spain, whilst Lorenzo Insigne could have a special role.
The two football giants face each other today at 17:00 UK time in a match that many believe should have been a final.
With the starting XI almost completely certain, La Gazzetta dello Sport reports that striker Eder will have one of the key roles in attempting to win the match.
Apparently he will be asked to track back and press hard on Sergio Busquets, in order to stifle Spain's attacking manoeuvres. This is the same tactic that was employed by Croatia, who managed to beat the holding champions by 2-1.
It means a very stamina-heavy double role for the oriundo, who will also have to dash forward and support Graziano Pelle in the attack.
The other important tactical variable could be Insigne, who apparently gained respect in Conte's eyes following his short performance against Ireland.
The Napoli striker could be employed should the Spaniards take the lead, replacing Eder in the second half and playing wider in an effort to provide more attacking options.